Sign-receptacle fastening-eyelet.



P. J. RUSSELL. SIGN REGEPTAGLE FASTENING EYELET. APILIOATION FI ED OUT. 26, 1909.

973,81 7, v Patented Oct. 25, 1910.

, 2 SHBETS-SHEET 1.

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F. J'. RUSSELL.

SIGN RECEPTAGLE FASTENING EYELET.

APPLICATION FILED 001. 26, 1909.

Patented Oct. 25, 1910.

2 SHEETS-831511732.

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FRANK J. RUSSELL, OF BROOKLYN, NEW YORK.

SIGN-RECEP'IACLE FASTENING-EYELET.

Specification of Lettersl'atent. Pal;entd Oct. 25, 1910 Application filed October 26, 1909. Serial No. 524,727.

To all whom it may concern I r Be it known. that I, FRANK J. RUSSELL, a

citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Im rovements inSign-ReceptacleFastening-Eyelets, (Case B,) of which the following is a specification.

This invention relates to the subject of electrical receptacles, and more particularly to the mounting of such receptacles ona sign-board, junction-box cover, or other supporting element. V

The invention has in .view the provision of a simple and practical form of fastening deand secured in smaller and more confinedplaces than is usually possible with the ordinary construction.

A distinctive feature of the present invention is that tliebody of the receptacle is cylindrical and free from projections, and that the fastening device engages a part of the receptacle of less diameter than the major part of the receptacle body. This admits of employing the invention in connection with a plain round hole in the supporting element, and also involves an operation wherein-the receptacle and the fastening device are simply pushed together, and through the hole without rotary movement at all. Furthermore, the invention provides a fastening device or eyelet which is complete in one piece. Many other objects and advantages of such a construction will be apparent to those familiar with the art, and it will also be understood that various modifications may be resorted to in the application of the invention without departing from the principle thereof, but certain practical embodiments of the invention are shown in the accompanying drawings, in which- Figure 1 is a side elevation illustrating an electrical receptacle fastened upon a signboard or other supporting element by the improved fastening device claimed herein.

Fig. 2 is a sectional elevation of the application of the invention shown in Fig. 1. Fig. 3 is a sectional View of the sign-board or supporting element, with the receptacle removed. Fig. 4 is a view similar to Fig. 3,

but illustrating another modification in the structural formation of the fastening eyelet. Fig. 5 is a View similar to Fig. 2, but illustrating a further modification in the formation of the fastening eyelet, and in the formation of the depressed portion in the body of the receptacle. Fig. 6 is a perspective view of the same construction illustrated in Fig. 5, and showing the receptacle body separated from the supporting element, but in a position for insertion therein. Fig. 7 is 'a view similar to Fig. 5, but illustrating a further modification in the formation of the fastening eyelet, and of the receptacle body.

Fig. 8 is a view similar to'Fig. 6, but illustrating the operative relation of the parts shown in the modification of Fig. 7.

Like references" designate "corresponding parts in the several figures of the drawings. For illustrative purposes the invention is shown in the drawings as employed with a sign receptacle of the kind embodying in its organization a one-piece porcelain or equiv-- alent body designated as a whole by the numeral 1.. This body is provided at its front end with an annular binding collar 2 impinging against the sign-sheet or other supporting element S in opposition to the action of the fastening device or eyelet 3. This applies particularly to the construction illustrated in Figs. 1 to 6, inclusive, of the drawings, as will be hereinafter particularly pointed out.

As above mdicated, the fastening device as an entirety may be properly termed a fastening eyelet, inasmuch as the same is carried by the supportin element and surrounds the receiving ho e 4 therein, said eyelet also projecting from and beyond one side of the supporting element so as to entirely surround and clamp the receptacle body which is inserted therethrough.

Referring particularly to the embodiment of the invention suggested in Figs. 1, 2 and 3 of the drawings, the fastening eyelet 3 is shown as consisting of a resilient sheetmetal collar or band of circular form in cross-section to correspond to the form of the plain round hole in the supporting element and to the cylindrical contour of the receptacle body 1. Also, the construction shown involves the feature of the fastening eyelet being carried with and by the sup porting element, thus only requlring the receptacle body to be inserted through the re-- ceiving hole in the eyelet to provide for installing and fastening the said body in place.

In all embodiments of the invention shown in this application the fastening eyelet 3 is an integral part of the supporting sheet and is illustrated as being punched out directly from the metalof the sheet. However, various modifications may be resorted to in the structural details of this eyelet. For instance, in the construction shown in Figs. 1, 2 and 3, it will be observed that the collar or band formin the eyelet is of the split-ring type, and being of resilient metal acts as a spring-clamp to yieldingly clamp upon the body of the receptacle when inserted in place in the hole of the supporting element. Also in this same construction provision is made to secure an effective locking action by forming the body 1 with an external annular catch shoulder 5 producing a depressed portion in the body which is of less diameter than the major parts thereof. This shoulder 5 is adapted to be engaged, through a spring snap-action by the inner locking edge 6 of the eyelet, and this looking edge portion 6 may be formed with a.

. continuous series of corrugations or projections 7 forming locking elements which interlock with corresponding and complemental elements 8 arranged in an annular series. upon the depressed part of the body 1 adjacent to the shoulder'5 These interlocking elements 7 and 8 serve to prevent rotary movement of the receptacle body.

, The modification suggested in Fig. 4 of the drawings suggests the plan of having the free edge of the eyelet broken up, by notches or slits '9, into a continuous series of spring locking tongues 10, but in all other respects being the same in construction and function as the eyelet shown in Figs. 1 to 3, inclusive. Again, in Figs. 5 and 6 of the drawings, the free edge of the eyelet is shown as being cut into by a continuous series of longitudinally disposed slits producing a continuous circular series of spring locking tongues 11 forthe same purpose as the tongues 10 shown in Fig. 4, but in the modified structure of F igs. 5 and 6 the free ends of the locking tongues 11 are provided with outturned curved engaging tips 12 which fit a curved annular catch shoulder 5 surrounding the receptacle body 1. Furthermore, shown in Figs. 5 and 6, the depressed art of the receptacle body between the shou der 5" and the front binding collar 2 is formed with a continuous circular series of bearing fiats' 13 against which the spring tongues 11 flatly rest and thus prevent the receptacle body from turning.

The modification shown in Figs. 7 and 8 of the drawings suggests the plan of havin the spring tongues 11 of the eyelet formed at their free ends with inturned holding prongs 14 adapted to snap into eng ement with an annular retaining roove 15 ormed in the body of. the receptadl vided with a plain rounded front guiding nose 15, permitting the receptacle body to be shoved through the eyelet from the rear, as well as from the front if conditions should require.

in this modified construction e. In this form' of the invention the receptacle body is pro-.

The present application includes and covers forms of the invention disclosed in the opening application filed October 9, 1908, Serial Number 456,949.

What I claim is 1. In a receptacle mounting, the combination with the receptacle body having a front shoulder and an intermediate shoulder, of a supporting element having an integral fas-' 

